In a previous work, a local tissue distribution model and multicontext fuzzy clustering (MCFC) method had been proposed to successfully classify 3D T1-weighted MR images into tissues of white matter, gray matter, and cerebral spinal fluid in the condition of intensity inhomogeneities. This paper presents a complementary and improved version of MCFC. Firstly, quantitative analyses are added to v...

This study evaluates the performance of a molten carbonate fuel cell and micro gas turbine (MCFC/MGT) hybrid power system bi-fueled by city gas and biogas. The performance of the MCFC/MGT hybrid power system and MFCF/MGT hybrid power system response have been investigated experimentally and numerically. Results show that the MCFC, steam reformer, and catalytic combustor models are in agreement ...

Modelling Molten Carbonate Fuel Cells (MCFC) is very difficult and the existing models are too complicated to be used for controlling design, especially for on-line control design. This paper presents the application of neural networks identification method to develop the nonlinear temperature model of MCFC stack. The hidden layer units of the neural networks consist of a set of nonlinear radia...

This paper presents an integrated approach to the steady state and dynamic simulation of fuel cells and power generation processes. Attention is devoted to Molten Carbonate Fuel Cells (MCFC) due to the relative low cost, simple construction and flexibility of use of the fuel. Two models are used in this work, both recently presented in the literature: (i) a steady state model simulating a globa...

The development of dynamic simulation tools for fuel cell systems and fuel cell/gas turbine (FC/GT) systems is required to understand the response of fuel cell systems to both scheduled and unscheduled perturbations. These tools supply the foundation on which control strategies can be developed and tested before they are actually implemented in a physical system. For high temperature fuel cell ...

Natural gas may be used instead of hydrogen as fuel for the molten carbonate fuel cell (MCFC) by steam reforming the natural gas inside the MCFC, using a nickel catalyst (internal reforming). The severe conditions inside the MCFC, however, require that the catalyst has a very high stability. In order to find suitable types of nickel catalysts and to obtain more knowledge about the deactivation ...

In this study a three-phase homogeneous model was developed to simulate the performance of the molten carbonate fuel cell ~MCFC! cathode. The homogeneous model is based on volume averaging of different variables in the three phases over a small volume element. This approach can be used to model porous electrodes as it represents the real system much better than the conventional agglomerate mode...

Conversion of fossil fuels to electrical power is the most popular method of electrical power generation. Due to the depletion of fossil fuels and the increase in air pollution, the necessity of using high efficiency power generation systems is increasing. High temperature fuel cells, such as solid oxide fuel cells (SOFC) and molten carbonate fuel cells (MCFC), have high efficiency. According t...

The paper presents a simulation investigation of using molten carbonate fuel cell (MCFC) combined with exhaust gas recirculation (EGR) or selective (SEGR) to reduce CO2 emission from the turbine in order cope climate change problem. EGR SEGR can be used concentrate low-concentration exhausts. concentration is then raised further by adding MCFC’s cathode. suggested gas–steam cycle system paired ...

We formulate end-to-end congestion control as a global optimization problem. Based on this formulation, a class of minimum cost flow control (MCFC) algorithms for adjusting session rates or window sizes are proposed. Significantly, we show that these algorithms can be implemented at the transport layer of an IP network and can provide certain fairness properties and user priority options withou...